1 Astrology
1.1 Origin
Southern and central Africa
Pakistan, Tanzania
1.2 Color
White, Violet, Blue, Yellow, Brownish, Colorless, Greenish
Brown, gray, Green, Blue, rose, Red
1.3 Streak
Colorless
White, Colorless
1.4 For which Rashi?
Not Available
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
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1.8 Energy
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
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2 Physical Properties
2.1 Tenacity
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Even
2.6 Cleavage
{???} Distinct, {???} Indistinct
Perfect {010} imperfect {100}
2.7 Mohs Hardness
2.8 Chemical Composition
3CaAl 2Si 2O 8 · CaCO 3Anthony et al , Handbook of mineralogy (2001)
Ca2Al3(SiO4)3(OH)
3 Optical Properties
3.1 Luster
Vitreous, Resinous
Vitreous
3.2 Pleochroism
Not Available
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
3.3 Dispersion
3.4 Transparency
Transparent, Translucent
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
3.5 Refractive Index
1.556-1.6001.685-1.707
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Not Available
Orthorhombic
3.8 Birefringence
0.024-0.0370.006-0.018
0
0.296
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
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